add which method

2012-03-03 15:50:24 -08:00 · 2012-03-03 15:50:24 -08:00 · cc78050dc5
commit cc78050dc5
parent 6868bf0d6e
1 changed files with 9 additions and 0 deletions
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@ -138,6 +138,15 @@ def puts_columns items, star_items=[]
  end
 end

+def which cmd
+  path = `/usr/bin/which #{cmd}`.chomp
+  if path.empty?
+    nil
+  else
+    Pathname.new(path)
+  end
+end
+
 def which_editor
  editor = ENV['HOMEBREW_EDITOR'] || ENV['EDITOR']
  # If an editor wasn't set, try to pick a sane default